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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef PULSEVIEW_PV_DATA_DECODERSTACK_H | |
22 | #define PULSEVIEW_PV_DATA_DECODERSTACK_H | |
23 | ||
24 | #include "signaldata.h" | |
25 | ||
26 | #include <list> | |
27 | ||
28 | #include <boost/shared_ptr.hpp> | |
29 | #include <boost/thread.hpp> | |
30 | ||
31 | #include <QObject> | |
32 | #include <QString> | |
33 | ||
34 | struct srd_decoder; | |
35 | struct srd_probe; | |
36 | struct srd_proto_data; | |
37 | ||
38 | namespace DecoderStackTest { | |
39 | class TwoDecoderStack; | |
40 | } | |
41 | ||
42 | namespace pv { | |
43 | ||
44 | namespace view { | |
45 | class LogicSignal; | |
46 | } | |
47 | ||
48 | namespace data { | |
49 | ||
50 | namespace decode { | |
51 | class Annotation; | |
52 | class Decoder; | |
53 | } | |
54 | ||
55 | class Logic; | |
56 | ||
57 | class DecoderStack : public QObject, public SignalData | |
58 | { | |
59 | Q_OBJECT | |
60 | ||
61 | private: | |
62 | static const double DecodeMargin; | |
63 | static const double DecodeThreshold; | |
64 | static const int64_t DecodeChunkLength; | |
65 | ||
66 | public: | |
67 | DecoderStack(const srd_decoder *const decoder); | |
68 | ||
69 | virtual ~DecoderStack(); | |
70 | ||
71 | const std::list< boost::shared_ptr<decode::Decoder> >& stack() const; | |
72 | void push(boost::shared_ptr<decode::Decoder> decoder); | |
73 | void remove(int index); | |
74 | ||
75 | int64_t samples_decoded() const; | |
76 | ||
77 | const std::vector<pv::data::decode::Annotation> annotations() const; | |
78 | ||
79 | QString error_message(); | |
80 | ||
81 | void clear(); | |
82 | ||
83 | uint64_t get_max_sample_count() const; | |
84 | ||
85 | void begin_decode(); | |
86 | ||
87 | private: | |
88 | void decode_proc(boost::shared_ptr<data::Logic> data); | |
89 | ||
90 | static void annotation_callback(srd_proto_data *pdata, | |
91 | void *decoder); | |
92 | ||
93 | signals: | |
94 | void new_decode_data(); | |
95 | ||
96 | private: | |
97 | ||
98 | /** | |
99 | * This mutex prevents more than one decode operation occuring | |
100 | * concurrently. | |
101 | * @todo A proper solution should be implemented to allow multiple | |
102 | * decode operations. | |
103 | */ | |
104 | static boost::mutex _global_decode_mutex; | |
105 | ||
106 | std::list< boost::shared_ptr<decode::Decoder> > _stack; | |
107 | ||
108 | mutable boost::mutex _mutex; | |
109 | int64_t _samples_decoded; | |
110 | std::vector<pv::data::decode::Annotation> _annotations; | |
111 | QString _error_message; | |
112 | ||
113 | boost::thread _decode_thread; | |
114 | ||
115 | friend class DecoderStackTest::TwoDecoderStack; | |
116 | }; | |
117 | ||
118 | } // namespace data | |
119 | } // namespace pv | |
120 | ||
121 | #endif // PULSEVIEW_PV_DATA_DECODERSTACK_H |